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-rw-r--r--sound/oss/ad1848.c3062
1 files changed, 0 insertions, 3062 deletions
diff --git a/sound/oss/ad1848.c b/sound/oss/ad1848.c
deleted file mode 100644
index 2421f59cf279..000000000000
--- a/sound/oss/ad1848.c
+++ /dev/null
@@ -1,3062 +0,0 @@
-/*
- * sound/oss/ad1848.c
- *
- * The low level driver for the AD1848/CS4248 codec chip which
- * is used for example in the MS Sound System.
- *
- * The CS4231 which is used in the GUS MAX and some other cards is
- * upwards compatible with AD1848 and this driver is able to drive it.
- *
- * CS4231A and AD1845 are upward compatible with CS4231. However
- * the new features of these chips are different.
- *
- * CS4232 is a PnP audio chip which contains a CS4231A (and SB, MPU).
- * CS4232A is an improved version of CS4232.
- *
- *
- *
- * Copyright (C) by Hannu Savolainen 1993-1997
- *
- * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
- * Version 2 (June 1991). See the "COPYING" file distributed with this software
- * for more info.
- *
- *
- * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed)
- * general sleep/wakeup clean up.
- * Alan Cox : reformatted. Fixed SMP bugs. Moved to kernel alloc/free
- * of irqs. Use dev_id.
- * Christoph Hellwig : adapted to module_init/module_exit
- * Aki Laukkanen : added power management support
- * Arnaldo C. de Melo : added missing restore_flags in ad1848_resume
- * Miguel Freitas : added ISA PnP support
- * Alan Cox : Added CS4236->4239 identification
- * Daniel T. Cobra : Alernate config/mixer for later chips
- * Alan Cox : Merged chip idents and config code
- *
- * TODO
- * APM save restore assist code on IBM thinkpad
- *
- * Status:
- * Tested. Believed fully functional.
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/stddef.h>
-#include <linux/slab.h>
-#include <linux/isapnp.h>
-#include <linux/pnp.h>
-#include <linux/spinlock.h>
-
-#include "sound_config.h"
-
-#include "ad1848.h"
-#include "ad1848_mixer.h"
-
-typedef struct
-{
- spinlock_t lock;
- int base;
- int irq;
- int dma1, dma2;
- int dual_dma; /* 1, when two DMA channels allocated */
- int subtype;
- unsigned char MCE_bit;
- unsigned char saved_regs[64]; /* Includes extended register space */
- int debug_flag;
-
- int audio_flags;
- int record_dev, playback_dev;
-
- int xfer_count;
- int audio_mode;
- int open_mode;
- int intr_active;
- char *chip_name, *name;
- int model;
-#define MD_1848 1
-#define MD_4231 2
-#define MD_4231A 3
-#define MD_1845 4
-#define MD_4232 5
-#define MD_C930 6
-#define MD_IWAVE 7
-#define MD_4235 8 /* Crystal Audio CS4235 */
-#define MD_1845_SSCAPE 9 /* Ensoniq Soundscape PNP*/
-#define MD_4236 10 /* 4236 and higher */
-#define MD_42xB 11 /* CS 42xB */
-#define MD_4239 12 /* CS4239 */
-
- /* Mixer parameters */
- int recmask;
- int supported_devices, orig_devices;
- int supported_rec_devices, orig_rec_devices;
- int *levels;
- short mixer_reroute[32];
- int dev_no;
- volatile unsigned long timer_ticks;
- int timer_running;
- int irq_ok;
- mixer_ents *mix_devices;
- int mixer_output_port;
-} ad1848_info;
-
-typedef struct ad1848_port_info
-{
- int open_mode;
- int speed;
- unsigned char speed_bits;
- int channels;
- int audio_format;
- unsigned char format_bits;
-}
-ad1848_port_info;
-
-static struct address_info cfg;
-static int nr_ad1848_devs;
-
-static bool deskpro_xl;
-static bool deskpro_m;
-static bool soundpro;
-
-#ifndef EXCLUDE_TIMERS
-static int timer_installed = -1;
-#endif
-
-static int loaded;
-
-static int ad_format_mask[13 /*devc->model */ ] =
-{
- 0,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, /* AD1845 */
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
- AFMT_U8 | AFMT_S16_LE /* CS4235 */,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW /* Ensoniq Soundscape*/,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM,
- AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM
-};
-
-static ad1848_info adev_info[MAX_AUDIO_DEV];
-
-#define io_Index_Addr(d) ((d)->base)
-#define io_Indexed_Data(d) ((d)->base+1)
-#define io_Status(d) ((d)->base+2)
-#define io_Polled_IO(d) ((d)->base+3)
-
-static struct {
- unsigned char flags;
-#define CAP_F_TIMER 0x01
-} capabilities [10 /*devc->model */ ] = {
- {0}
- ,{0} /* MD_1848 */
- ,{CAP_F_TIMER} /* MD_4231 */
- ,{CAP_F_TIMER} /* MD_4231A */
- ,{CAP_F_TIMER} /* MD_1845 */
- ,{CAP_F_TIMER} /* MD_4232 */
- ,{0} /* MD_C930 */
- ,{CAP_F_TIMER} /* MD_IWAVE */
- ,{0} /* MD_4235 */
- ,{CAP_F_TIMER} /* MD_1845_SSCAPE */
-};
-
-#ifdef CONFIG_PNP
-static int isapnp = 1;
-static int isapnpjump;
-static bool reverse;
-
-static int audio_activated;
-#else
-static int isapnp;
-#endif
-
-
-
-static int ad1848_open(int dev, int mode);
-static void ad1848_close(int dev);
-static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag);
-static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag);
-static int ad1848_prepare_for_output(int dev, int bsize, int bcount);
-static int ad1848_prepare_for_input(int dev, int bsize, int bcount);
-static void ad1848_halt(int dev);
-static void ad1848_halt_input(int dev);
-static void ad1848_halt_output(int dev);
-static void ad1848_trigger(int dev, int bits);
-static irqreturn_t adintr(int irq, void *dev_id);
-
-#ifndef EXCLUDE_TIMERS
-static int ad1848_tmr_install(int dev);
-static void ad1848_tmr_reprogram(int dev);
-#endif
-
-static int ad_read(ad1848_info * devc, int reg)
-{
- int x;
- int timeout = 900000;
-
- while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */
- timeout--;
-
- if(reg < 32)
- {
- outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc));
- x = inb(io_Indexed_Data(devc));
- }
- else
- {
- int xreg, xra;
-
- xreg = (reg & 0xff) - 32;
- xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2);
- outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc));
- outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc));
- x = inb(io_Indexed_Data(devc));
- }
-
- return x;
-}
-
-static void ad_write(ad1848_info * devc, int reg, int data)
-{
- int timeout = 900000;
-
- while (timeout > 0 && inb(devc->base) == 0x80) /* Are we initializing */
- timeout--;
-
- if(reg < 32)
- {
- outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc));
- outb(((unsigned char) (data & 0xff)), io_Indexed_Data(devc));
- }
- else
- {
- int xreg, xra;
-
- xreg = (reg & 0xff) - 32;
- xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2);
- outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc));
- outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc));
- outb((unsigned char) (data & 0xff), io_Indexed_Data(devc));
- }
-}
-
-static void wait_for_calibration(ad1848_info * devc)
-{
- int timeout;
-
- /*
- * Wait until the auto calibration process has finished.
- *
- * 1) Wait until the chip becomes ready (reads don't return 0x80).
- * 2) Wait until the ACI bit of I11 gets on and then off.
- */
-
- timeout = 100000;
- while (timeout > 0 && inb(devc->base) == 0x80)
- timeout--;
- if (inb(devc->base) & 0x80)
- printk(KERN_WARNING "ad1848: Auto calibration timed out(1).\n");
-
- timeout = 100;
- while (timeout > 0 && !(ad_read(devc, 11) & 0x20))
- timeout--;
- if (!(ad_read(devc, 11) & 0x20))
- return;
-
- timeout = 80000;
- while (timeout > 0 && (ad_read(devc, 11) & 0x20))
- timeout--;
- if (ad_read(devc, 11) & 0x20)
- if ((devc->model != MD_1845) && (devc->model != MD_1845_SSCAPE))
- printk(KERN_WARNING "ad1848: Auto calibration timed out(3).\n");
-}
-
-static void ad_mute(ad1848_info * devc)
-{
- int i;
- unsigned char prev;
-
- /*
- * Save old register settings and mute output channels
- */
-
- for (i = 6; i < 8; i++)
- {
- prev = devc->saved_regs[i] = ad_read(devc, i);
- }
-
-}
-
-static void ad_unmute(ad1848_info * devc)
-{
-}
-
-static void ad_enter_MCE(ad1848_info * devc)
-{
- int timeout = 1000;
- unsigned short prev;
-
- while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */
- timeout--;
-
- devc->MCE_bit = 0x40;
- prev = inb(io_Index_Addr(devc));
- if (prev & 0x40)
- {
- return;
- }
- outb((devc->MCE_bit), io_Index_Addr(devc));
-}
-
-static void ad_leave_MCE(ad1848_info * devc)
-{
- unsigned char prev, acal;
- int timeout = 1000;
-
- while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */
- timeout--;
-
- acal = ad_read(devc, 9);
-
- devc->MCE_bit = 0x00;
- prev = inb(io_Index_Addr(devc));
- outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */
-
- if ((prev & 0x40) == 0) /* Not in MCE mode */
- {
- return;
- }
- outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */
- if (acal & 0x08) /* Auto calibration is enabled */
- wait_for_calibration(devc);
-}
-
-static int ad1848_set_recmask(ad1848_info * devc, int mask)
-{
- unsigned char recdev;
- int i, n;
- unsigned long flags;
-
- mask &= devc->supported_rec_devices;
-
- /* Rename the mixer bits if necessary */
- for (i = 0; i < 32; i++)
- {
- if (devc->mixer_reroute[i] != i)
- {
- if (mask & (1 << i))
- {
- mask &= ~(1 << i);
- mask |= (1 << devc->mixer_reroute[i]);
- }
- }
- }
-
- n = 0;
- for (i = 0; i < 32; i++) /* Count selected device bits */
- if (mask & (1 << i))
- n++;
-
- spin_lock_irqsave(&devc->lock,flags);
- if (!soundpro) {
- if (n == 0)
- mask = SOUND_MASK_MIC;
- else if (n != 1) { /* Too many devices selected */
- mask &= ~devc->recmask; /* Filter out active settings */
-
- n = 0;
- for (i = 0; i < 32; i++) /* Count selected device bits */
- if (mask & (1 << i))
- n++;
-
- if (n != 1)
- mask = SOUND_MASK_MIC;
- }
- switch (mask) {
- case SOUND_MASK_MIC:
- recdev = 2;
- break;
-
- case SOUND_MASK_LINE:
- case SOUND_MASK_LINE3:
- recdev = 0;
- break;
-
- case SOUND_MASK_CD:
- case SOUND_MASK_LINE1:
- recdev = 1;
- break;
-
- case SOUND_MASK_IMIX:
- recdev = 3;
- break;
-
- default:
- mask = SOUND_MASK_MIC;
- recdev = 2;
- }
-
- recdev <<= 6;
- ad_write(devc, 0, (ad_read(devc, 0) & 0x3f) | recdev);
- ad_write(devc, 1, (ad_read(devc, 1) & 0x3f) | recdev);
- } else { /* soundpro */
- unsigned char val;
- int set_rec_bit;
- int j;
-
- for (i = 0; i < 32; i++) { /* For each bit */
- if ((devc->supported_rec_devices & (1 << i)) == 0)
- continue; /* Device not supported */
-
- for (j = LEFT_CHN; j <= RIGHT_CHN; j++) {
- if (devc->mix_devices[i][j].nbits == 0) /* Inexistent channel */
- continue;
-
- /*
- * This is tricky:
- * set_rec_bit becomes 1 if the corresponding bit in mask is set
- * then it gets flipped if the polarity is inverse
- */
- set_rec_bit = ((mask & (1 << i)) != 0) ^ devc->mix_devices[i][j].recpol;
-
- val = ad_read(devc, devc->mix_devices[i][j].recreg);
- val &= ~(1 << devc->mix_devices[i][j].recpos);
- val |= (set_rec_bit << devc->mix_devices[i][j].recpos);
- ad_write(devc, devc->mix_devices[i][j].recreg, val);
- }
- }
- }
- spin_unlock_irqrestore(&devc->lock,flags);
-
- /* Rename the mixer bits back if necessary */
- for (i = 0; i < 32; i++)
- {
- if (devc->mixer_reroute[i] != i)
- {
- if (mask & (1 << devc->mixer_reroute[i]))
- {
- mask &= ~(1 << devc->mixer_reroute[i]);
- mask |= (1 << i);
- }
- }
- }
- devc->recmask = mask;
- return mask;
-}
-
-static void oss_change_bits(ad1848_info *devc, unsigned char *regval,
- unsigned char *muteval, int dev, int chn, int newval)
-{
- unsigned char mask;
- int shift;
- int mute;
- int mutemask;
- int set_mute_bit;
-
- set_mute_bit = (newval == 0) ^ devc->mix_devices[dev][chn].mutepol;
-
- if (devc->mix_devices[dev][chn].polarity == 1) /* Reverse */
- newval = 100 - newval;
-
- mask = (1 << devc->mix_devices[dev][chn].nbits) - 1;
- shift = devc->mix_devices[dev][chn].bitpos;
-
- if (devc->mix_devices[dev][chn].mutepos == 8)
- { /* if there is no mute bit */
- mute = 0; /* No mute bit; do nothing special */
- mutemask = ~0; /* No mute bit; do nothing special */
- }
- else
- {
- mute = (set_mute_bit << devc->mix_devices[dev][chn].mutepos);
- mutemask = ~(1 << devc->mix_devices[dev][chn].mutepos);
- }
-
- newval = (int) ((newval * mask) + 50) / 100; /* Scale it */
- *regval &= ~(mask << shift); /* Clear bits */
- *regval |= (newval & mask) << shift; /* Set new value */
-
- *muteval &= mutemask;
- *muteval |= mute;
-}
-
-static int ad1848_mixer_get(ad1848_info * devc, int dev)
-{
- if (!((1 << dev) & devc->supported_devices))
- return -EINVAL;
-
- dev = devc->mixer_reroute[dev];
-
- return devc->levels[dev];
-}
-
-static void ad1848_mixer_set_channel(ad1848_info *devc, int dev, int value, int channel)
-{
- int regoffs, muteregoffs;
- unsigned char val, muteval;
- unsigned long flags;
-
- regoffs = devc->mix_devices[dev][channel].regno;
- muteregoffs = devc->mix_devices[dev][channel].mutereg;
- val = ad_read(devc, regoffs);
-
- if (muteregoffs != regoffs) {
- muteval = ad_read(devc, muteregoffs);
- oss_change_bits(devc, &val, &muteval, dev, channel, value);
- }
- else
- oss_change_bits(devc, &val, &val, dev, channel, value);
-
- spin_lock_irqsave(&devc->lock,flags);
- ad_write(devc, regoffs, val);
- devc->saved_regs[regoffs] = val;
- if (muteregoffs != regoffs) {
- ad_write(devc, muteregoffs, muteval);
- devc->saved_regs[muteregoffs] = muteval;
- }
- spin_unlock_irqrestore(&devc->lock,flags);
-}
-
-static int ad1848_mixer_set(ad1848_info * devc, int dev, int value)
-{
- int left = value & 0x000000ff;
- int right = (value & 0x0000ff00) >> 8;
- int retvol;
-
- if (dev > 31)
- return -EINVAL;
-
- if (!(devc->supported_devices & (1 << dev)))
- return -EINVAL;
-
- dev = devc->mixer_reroute[dev];
-
- if (devc->mix_devices[dev][LEFT_CHN].nbits == 0)
- return -EINVAL;
-
- if (left > 100)
- left = 100;
- if (right > 100)
- right = 100;
-
- if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0) /* Mono control */
- right = left;
-
- retvol = left | (right << 8);
-
- /* Scale volumes */
- left = mix_cvt[left];
- right = mix_cvt[right];
-
- devc->levels[dev] = retvol;
-
- /*
- * Set the left channel
- */
- ad1848_mixer_set_channel(devc, dev, left, LEFT_CHN);
-
- /*
- * Set the right channel
- */
- if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0)
- goto out;
- ad1848_mixer_set_channel(devc, dev, right, RIGHT_CHN);
-
- out:
- return retvol;
-}
-
-static void ad1848_mixer_reset(ad1848_info * devc)
-{
- int i;
- char name[32];
- unsigned long flags;
-
- devc->mix_devices = &(ad1848_mix_devices[0]);
-
- sprintf(name, "%s_%d", devc->chip_name, nr_ad1848_devs);
-
- for (i = 0; i < 32; i++)
- devc->mixer_reroute[i] = i;
-
- devc->supported_rec_devices = MODE1_REC_DEVICES;
-
- switch (devc->model)
- {
- case MD_4231:
- case MD_4231A:
- case MD_1845:
- case MD_1845_SSCAPE:
- devc->supported_devices = MODE2_MIXER_DEVICES;
- break;
-
- case MD_C930:
- devc->supported_devices = C930_MIXER_DEVICES;
- devc->mix_devices = &(c930_mix_devices[0]);
- break;
-
- case MD_IWAVE:
- devc->supported_devices = MODE3_MIXER_DEVICES;
- devc->mix_devices = &(iwave_mix_devices[0]);
- break;
-
- case MD_42xB:
- case MD_4239:
- devc->mix_devices = &(cs42xb_mix_devices[0]);
- devc->supported_devices = MODE3_MIXER_DEVICES;
- break;
- case MD_4232:
- case MD_4235:
- case MD_4236:
- devc->supported_devices = MODE3_MIXER_DEVICES;
- break;
-
- case MD_1848:
- if (soundpro) {
- devc->supported_devices = SPRO_MIXER_DEVICES;
- devc->supported_rec_devices = SPRO_REC_DEVICES;
- devc->mix_devices = &(spro_mix_devices[0]);
- break;
- }
-
- default:
- devc->supported_devices = MODE1_MIXER_DEVICES;
- }
-
- devc->orig_devices = devc->supported_devices;
- devc->orig_rec_devices = devc->supported_rec_devices;
-
- devc->levels = load_mixer_volumes(name, default_mixer_levels, 1);
-
- for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
- {
- if (devc->supported_devices & (1 << i))
- ad1848_mixer_set(devc, i, devc->levels[i]);
- }
-
- ad1848_set_recmask(devc, SOUND_MASK_MIC);
-
- devc->mixer_output_port = devc->levels[31] | AUDIO_HEADPHONE | AUDIO_LINE_OUT;
-
- spin_lock_irqsave(&devc->lock,flags);
- if (!soundpro) {
- if (devc->mixer_output_port & AUDIO_SPEAKER)
- ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */
- else
- ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */
- } else {
- /*
- * From the "wouldn't it be nice if the mixer API had (better)
- * support for custom stuff" category
- */
- /* Enable surround mode and SB16 mixer */
- ad_write(devc, 16, 0x60);
- }
- spin_unlock_irqrestore(&devc->lock,flags);
-}
-
-static int ad1848_mixer_ioctl(int dev, unsigned int cmd, void __user *arg)
-{
- ad1848_info *devc = mixer_devs[dev]->devc;
- int val;
-
- if (cmd == SOUND_MIXER_PRIVATE1)
- {
- if (get_user(val, (int __user *)arg))
- return -EFAULT;
-
- if (val != 0xffff)
- {
- unsigned long flags;
- val &= (AUDIO_SPEAKER | AUDIO_HEADPHONE | AUDIO_LINE_OUT);
- devc->mixer_output_port = val;
- val |= AUDIO_HEADPHONE | AUDIO_LINE_OUT; /* Always on */
- devc->mixer_output_port = val;
- spin_lock_irqsave(&devc->lock,flags);
- if (val & AUDIO_SPEAKER)
- ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */
- else
- ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */
- spin_unlock_irqrestore(&devc->lock,flags);
- }
- val = devc->mixer_output_port;
- return put_user(val, (int __user *)arg);
- }
- if (cmd == SOUND_MIXER_PRIVATE2)
- {
- if (get_user(val, (int __user *)arg))
- return -EFAULT;
- return(ad1848_control(AD1848_MIXER_REROUTE, val));
- }
- if (((cmd >> 8) & 0xff) == 'M')
- {
- if (_SIOC_DIR(cmd) & _SIOC_WRITE)
- {
- switch (cmd & 0xff)
- {
- case SOUND_MIXER_RECSRC:
- if (get_user(val, (int __user *)arg))
- return -EFAULT;
- val = ad1848_set_recmask(devc, val);
- break;
-
- default:
- if (get_user(val, (int __user *)arg))
- return -EFAULT;
- val = ad1848_mixer_set(devc, cmd & 0xff, val);
- break;
- }
- return put_user(val, (int __user *)arg);
- }
- else
- {
- switch (cmd & 0xff)
- {
- /*
- * Return parameters
- */
-
- case SOUND_MIXER_RECSRC:
- val = devc->recmask;
- break;
-
- case SOUND_MIXER_DEVMASK:
- val = devc->supported_devices;
- break;
-
- case SOUND_MIXER_STEREODEVS:
- val = devc->supported_devices;
- if (devc->model != MD_C930)
- val &= ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX);
- break;
-
- case SOUND_MIXER_RECMASK:
- val = devc->supported_rec_devices;
- break;
-
- case SOUND_MIXER_CAPS:
- val=SOUND_CAP_EXCL_INPUT;
- break;
-
- default:
- val = ad1848_mixer_get(devc, cmd & 0xff);
- break;
- }
- return put_user(val, (int __user *)arg);
- }
- }
- else
- return -EINVAL;
-}
-
-static int ad1848_set_speed(int dev, int arg)
-{
- ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
- ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- /*
- * The sampling speed is encoded in the least significant nibble of I8. The
- * LSB selects the clock source (0=24.576 MHz, 1=16.9344 MHz) and other
- * three bits select the divisor (indirectly):
- *
- * The available speeds are in the following table. Keep the speeds in
- * the increasing order.
- */
- typedef struct
- {
- int speed;
- unsigned char bits;
- }
- speed_struct;
-
- static speed_struct speed_table[] =
- {
- {5510, (0 << 1) | 1},
- {5510, (0 << 1) | 1},
- {6620, (7 << 1) | 1},
- {8000, (0 << 1) | 0},
- {9600, (7 << 1) | 0},
- {11025, (1 << 1) | 1},
- {16000, (1 << 1) | 0},
- {18900, (2 << 1) | 1},
- {22050, (3 << 1) | 1},
- {27420, (2 << 1) | 0},
- {32000, (3 << 1) | 0},
- {33075, (6 << 1) | 1},
- {37800, (4 << 1) | 1},
- {44100, (5 << 1) | 1},
- {48000, (6 << 1) | 0}
- };
-
- int i, n, selected = -1;
-
- n = sizeof(speed_table) / sizeof(speed_struct);
-
- if (arg <= 0)
- return portc->speed;
-
- if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* AD1845 has different timer than others */
- {
- if (arg < 4000)
- arg = 4000;
- if (arg > 50000)
- arg = 50000;
-
- portc->speed = arg;
- portc->speed_bits = speed_table[3].bits;
- return portc->speed;
- }
- if (arg < speed_table[0].speed)
- selected = 0;
- if (arg > speed_table[n - 1].speed)
- selected = n - 1;
-
- for (i = 1 /*really */ ; selected == -1 && i < n; i++)
- {
- if (speed_table[i].speed == arg)
- selected = i;
- else if (speed_table[i].speed > arg)
- {
- int diff1, diff2;
-
- diff1 = arg - speed_table[i - 1].speed;
- diff2 = speed_table[i].speed - arg;
-
- if (diff1 < diff2)
- selected = i - 1;
- else
- selected = i;
- }
- }
- if (selected == -1)
- {
- printk(KERN_WARNING "ad1848: Can't find speed???\n");
- selected = 3;
- }
- portc->speed = speed_table[selected].speed;
- portc->speed_bits = speed_table[selected].bits;
- return portc->speed;
-}
-
-static short ad1848_set_channels(int dev, short arg)
-{
- ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- if (arg != 1 && arg != 2)
- return portc->channels;
-
- portc->channels = arg;
- return arg;
-}
-
-static unsigned int ad1848_set_bits(int dev, unsigned int arg)
-{
- ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
- ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- static struct format_tbl
- {
- int format;
- unsigned char bits;
- }
- format2bits[] =
- {
- {
- 0, 0
- }
- ,
- {
- AFMT_MU_LAW, 1
- }
- ,
- {
- AFMT_A_LAW, 3
- }
- ,
- {
- AFMT_IMA_ADPCM, 5
- }
- ,
- {
- AFMT_U8, 0
- }
- ,
- {
- AFMT_S16_LE, 2
- }
- ,
- {
- AFMT_S16_BE, 6
- }
- ,
- {
- AFMT_S8, 0
- }
- ,
- {
- AFMT_U16_LE, 0
- }
- ,
- {
- AFMT_U16_BE, 0
- }
- };
- int i, n = sizeof(format2bits) / sizeof(struct format_tbl);
-
- if (arg == 0)
- return portc->audio_format;
-
- if (!(arg & ad_format_mask[devc->model]))
- arg = AFMT_U8;
-
- portc->audio_format = arg;
-
- for (i = 0; i < n; i++)
- if (format2bits[i].format == arg)
- {
- if ((portc->format_bits = format2bits[i].bits) == 0)
- return portc->audio_format = AFMT_U8; /* Was not supported */
-
- return arg;
- }
- /* Still hanging here. Something must be terribly wrong */
- portc->format_bits = 0;
- return portc->audio_format = AFMT_U8;
-}
-
-static struct audio_driver ad1848_audio_driver =
-{
- .owner = THIS_MODULE,
- .open = ad1848_open,
- .close = ad1848_close,
- .output_block = ad1848_output_block,
- .start_input = ad1848_start_input,
- .prepare_for_input = ad1848_prepare_for_input,
- .prepare_for_output = ad1848_prepare_for_output,
- .halt_io = ad1848_halt,
- .halt_input = ad1848_halt_input,
- .halt_output = ad1848_halt_output,
- .trigger = ad1848_trigger,
- .set_speed = ad1848_set_speed,
- .set_bits = ad1848_set_bits,
- .set_channels = ad1848_set_channels
-};
-
-static struct mixer_operations ad1848_mixer_operations =
-{
- .owner = THIS_MODULE,
- .id = "SOUNDPORT",
- .name = "AD1848/CS4248/CS4231",
- .ioctl = ad1848_mixer_ioctl
-};
-
-static int ad1848_open(int dev, int mode)
-{
- ad1848_info *devc;
- ad1848_port_info *portc;
- unsigned long flags;
-
- if (dev < 0 || dev >= num_audiodevs)
- return -ENXIO;
-
- devc = (ad1848_info *) audio_devs[dev]->devc;
- portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- /* here we don't have to protect against intr */
- spin_lock(&devc->lock);
- if (portc->open_mode || (devc->open_mode & mode))
- {
- spin_unlock(&devc->lock);
- return -EBUSY;
- }
- devc->dual_dma = 0;
-
- if (audio_devs[dev]->flags & DMA_DUPLEX)
- {
- devc->dual_dma = 1;
- }
- devc->intr_active = 0;
- devc->audio_mode = 0;
- devc->open_mode |= mode;
- portc->open_mode = mode;
- spin_unlock(&devc->lock);
- ad1848_trigger(dev, 0);
-
- if (mode & OPEN_READ)
- devc->record_dev = dev;
- if (mode & OPEN_WRITE)
- devc->playback_dev = dev;
-/*
- * Mute output until the playback really starts. This decreases clicking (hope so).
- */
- spin_lock_irqsave(&devc->lock,flags);
- ad_mute(devc);
- spin_unlock_irqrestore(&devc->lock,flags);
-
- return 0;
-}
-
-static void ad1848_close(int dev)
-{
- unsigned long flags;
- ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
- ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- devc->intr_active = 0;
- ad1848_halt(dev);
-
- spin_lock_irqsave(&devc->lock,flags);
-
- devc->audio_mode = 0;
- devc->open_mode &= ~portc->open_mode;
- portc->open_mode = 0;
-
- ad_unmute(devc);
- spin_unlock_irqrestore(&devc->lock,flags);
-}
-
-static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag)
-{
- unsigned long flags, cnt;
- ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
- ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- cnt = count;
-
- if (portc->audio_format == AFMT_IMA_ADPCM)
- {
- cnt /= 4;
- }
- else
- {
- if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */
- cnt >>= 1;
- }
- if (portc->channels > 1)
- cnt >>= 1;
- cnt--;
-
- if ((devc->audio_mode & PCM_ENABLE_OUTPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) &&
- intrflag &&
- cnt == devc->xfer_count)
- {
- devc->audio_mode |= PCM_ENABLE_OUTPUT;
- devc->intr_active = 1;
- return; /*
- * Auto DMA mode on. No need to react
- */
- }
- spin_lock_irqsave(&devc->lock,flags);
-
- ad_write(devc, 15, (unsigned char) (cnt & 0xff));
- ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff));
-
- devc->xfer_count = cnt;
- devc->audio_mode |= PCM_ENABLE_OUTPUT;
- devc->intr_active = 1;
- spin_unlock_irqrestore(&devc->lock,flags);
-}
-
-static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag)
-{
- unsigned long flags, cnt;
- ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
- ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- cnt = count;
- if (portc->audio_format == AFMT_IMA_ADPCM)
- {
- cnt /= 4;
- }
- else
- {
- if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */
- cnt >>= 1;
- }
- if (portc->channels > 1)
- cnt >>= 1;
- cnt--;
-
- if ((devc->audio_mode & PCM_ENABLE_INPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) &&
- intrflag &&
- cnt == devc->xfer_count)
- {
- devc->audio_mode |= PCM_ENABLE_INPUT;
- devc->intr_active = 1;
- return; /*
- * Auto DMA mode on. No need to react
- */
- }
- spin_lock_irqsave(&devc->lock,flags);
-
- if (devc->model == MD_1848)
- {
- ad_write(devc, 15, (unsigned char) (cnt & 0xff));
- ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff));
- }
- else
- {
- ad_write(devc, 31, (unsigned char) (cnt & 0xff));
- ad_write(devc, 30, (unsigned char) ((cnt >> 8) & 0xff));
- }
-
- ad_unmute(devc);
-
- devc->xfer_count = cnt;
- devc->audio_mode |= PCM_ENABLE_INPUT;
- devc->intr_active = 1;
- spin_unlock_irqrestore(&devc->lock,flags);
-}
-
-static int ad1848_prepare_for_output(int dev, int bsize, int bcount)
-{
- int timeout;
- unsigned char fs, old_fs, tmp = 0;
- unsigned long flags;
- ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
- ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- ad_mute(devc);
-
- spin_lock_irqsave(&devc->lock,flags);
- fs = portc->speed_bits | (portc->format_bits << 5);
-
- if (portc->channels > 1)
- fs |= 0x10;
-
- ad_enter_MCE(devc); /* Enables changes to the format select reg */
-
- if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* Use alternate speed select registers */
- {
- fs &= 0xf0; /* Mask off the rate select bits */
-
- ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */
- ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */
- }
- old_fs = ad_read(devc, 8);
-
- if (devc->model == MD_4232 || devc->model >= MD_4236)
- {
- tmp = ad_read(devc, 16);
- ad_write(devc, 16, tmp | 0x30);
- }
- if (devc->model == MD_IWAVE)
- ad_write(devc, 17, 0xc2); /* Disable variable frequency select */
-
- ad_write(devc, 8, fs);
-
- /*
- * Write to I8 starts resynchronization. Wait until it completes.
- */
-
- timeout = 0;
- while (timeout < 100 && inb(devc->base) != 0x80)
- timeout++;
- timeout = 0;
- while (timeout < 10000 && inb(devc->base) == 0x80)
- timeout++;
-
- if (devc->model >= MD_4232)
- ad_write(devc, 16, tmp & ~0x30);
-
- ad_leave_MCE(devc); /*
- * Starts the calibration process.
- */
- spin_unlock_irqrestore(&devc->lock,flags);
- devc->xfer_count = 0;
-
-#ifndef EXCLUDE_TIMERS
- if (dev == timer_installed && devc->timer_running)
- if ((fs & 0x01) != (old_fs & 0x01))
- {
- ad1848_tmr_reprogram(dev);
- }
-#endif
- ad1848_halt_output(dev);
- return 0;
-}
-
-static int ad1848_prepare_for_input(int dev, int bsize, int bcount)
-{
- int timeout;
- unsigned char fs, old_fs, tmp = 0;
- unsigned long flags;
- ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc;
- ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc;
-
- if (devc->audio_mode)
- return 0;
-
- spin_lock_irqsave(&devc->lock,flags);
- fs = portc->speed_bits | (portc->format_bits << 5);
-
- if (portc->channels > 1)
- fs |= 0x10;
-
- ad_enter_MCE(devc); /* Enables changes to the format select reg */
-
- if ((devc->model == MD_1845) || (devc->model == MD_1845_SSCAPE)) /* Use alternate speed select registers */
- {
- fs &= 0xf0; /* Mask off the rate select bits */
-
- ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */
- ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */
- }
- if (devc->model == MD_4232)
- {
- tmp = ad_read(devc, 16);
- ad_write(devc, 16, tmp | 0x30);
- }
- if (devc->model == MD_IWAVE)
- ad_write(devc, 17, 0xc2); /* Disable variable frequency select */
-
- /*
- * If mode >= 2 (CS4231), set I28. It's the capture format register.
- */
-
- if (devc->model != MD_1848)
- {
- old_fs = ad_read(devc, 28);
- ad_write(devc, 28, fs);
-
- /*
- * Write to I28 starts resynchronization. Wait until it completes.
- */
-
- timeout = 0;
- while (timeout < 100 && inb(devc->base) != 0x80)
- timeout++;
-
- timeout = 0;
- while (timeout < 10000 && inb(devc->base) == 0x80)